FEXCore: Move to Externals/FEXCore

External/FEXCore/Examples/SimpleCodeLoader.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <FEXCore/Core/CodeLoader.h>
+
+class TestCode final : public FEXCore::CodeLoader {
+public:
+
+  TestCode(uint8_t const *Code, size_t Size)
+    : CodePtr {Code}
+    , CodeSize {Size} {
+  }
+
+  uint64_t StackSize() const override {
+    return STACK_SIZE;
+  }
+
+  uint64_t SetupStack([[maybe_unused]] void *HostPtr, uint64_t GuestPtr) const override {
+    return GuestPtr + STACK_SIZE - 16;
+  }
+
+  uint64_t DefaultRIP() const override {
+    return RIP;
+  }
+
+  FEXCore::CodeLoader::MemoryLayout GetLayout() const override {
+    // Needs to be page aligned
+    constexpr uint64_t ConstCodeSize = 0x1000;
+    return std::make_tuple(CODE_START_RANGE, CODE_START_RANGE + ConstCodeSize, ConstCodeSize);
+  }
+
+  void MapMemoryRegion(std::function<void* (uint64_t, uint64_t)> Mapper) override {
+  }
+
+  void LoadMemory(MemoryWriter Writer) override {
+    Writer(reinterpret_cast<void const*>(CodePtr), 0, CodeSize);
+  }
+
+  uint64_t GetFinalRIP() override { return CODE_START_RANGE + CodeSize; }
+
+private:
+  static constexpr uint64_t STACK_SIZE = 0x1000;
+  static constexpr uint64_t CODE_START_RANGE = 0x0;
+  static constexpr uint64_t RIP = 0;
+
+  uint8_t const *CodePtr;
+  size_t CodeSize;
+
+};
+